Pipe-seaming machine.



PATENTED JUNE 25, 907. w. P. NORMAN. y PIPE SEAMING MACHINE.

PPLIOATION' I! D J NB4.1 A E U 3 SHEETS-SHEET 1.

. Z 1m [N-VENTOR.

WITNESSES: I

A TTORNE Y5 PATENTED JUNE 25, 1910?; W. P. NORMAN. PIPE SBAMING MACHINE.

APPLICATION FILED JUNE 4. 1906.

3 SHEET8-SHEET 2.

INVENTO/e A TTURNE 1/5 No. 857,750 PATBNTED JUNE 25, 1907.

W. F. NORMAN. PIPE SEAMING MACHINE.

APPLICATION FILED JUNE 4. 1906.

3 SHEETS-SHEET 3.

l l I l I ia I flilizamjjl/Zi'miz,

\Q [NVE/VTOR.

A TTO/P/VE Y5 W1 TNESSES:

WILLIAM NORMAN, OF NEVADA, MISSOURI.

PlPE-SEAMING MACHINE.

Specification of Letters Patent.

Patented June 25, 1907.

Application filed June 4, 1906. Serial No. 320,098.

To all whom, it may concern.-

Be it known that I, WILLIAM F. NORMAN, a citizen of the United States, residing at N evada, in the county of Vernon and State of Missouri, have invented a new and useful Pipe-Seaming Machine, of which the following is a specification.

This invention relates to sheet metal working machines and in particular to pipe corrugating machines, and has for its object to provide certain new and useful improvements whereby the machine is materially simplified, its operation is conveniently controlled and the product of the machine is turned out in a rapid and thoroughly efficient manner.

WVith these and other objects in view, the present invention consists in the combination and arrangement of parts as will be hereinafter more fully described, shown in the accompanying drawings and particularly pointed out in the appended claims, it being understood that changes in the form, proportion, size and minor details may be made, within the scope of the claims without departing from the spirit or sacrificing any of the advantages of the invention.

I11 the drawing: Figure 1 is a perspective view of a pipe making machine embodying the features of the present invention. Fig.2 is a cross sectional view of the machine. Fig. 3 is a detail sectional view on the line 33 of Fig. 2. Fig. 4 is an elevation of the corrugating machine with the corrugating core centered therein. Fig. 5 is a longitudinal sectional View of the corrugating core. Fig. 6 is a detail perspective View of the head of the corrugating core.

Like characters of reference designate corresponding parts in all of the figures of the drawings.

The present machine includes a bed 1 for the support of the frame of the machine. The frame includes two pairs of spaced uprights 2 and 3, corresponding posts 2 and 3 being individually braced by the braces 4 which incline downwardly and forwardly from the tops of said posts. The other osts 2 and 3 are connected by upper and ower cross bars 5 and 6. A bolt 7 pierces and connects the tops of the posts 2 and the adjacent brace 4 and another bolt 8 piercesand connects the tops of one post 3 and the adjacent brace 4, whereby the frame members are rig idly connected. Similar connections 9 and 10 are employed for the lower ends of the posts. Between the lower portions of the two bars or posts are stationary bearings 11 which are pierced by the res ective fastenings 9 and 10, and support a s aft 12. What will be termed the front end of the shaft is provided with a wheel, or roller 13 having aconcaved face located upon the exterior of the frame. Upon the rear end of the shaft is a gear 14.

Above the shaft 12 is another shaft 15 mounted in boxes 16 and 17 slidable vertically in the ways formed by the sets of posts 2 and 3. The set of posts 3 is provided with a vertical series of openings 18 for the reception of a bolt or threaded pin 19. As clear y indicated in Fig. 1 of the drawings, it will be noted that one series of perforations 18 is smooth and the other series is threaded, whereby, when the pin 19 is in place it is not liable to become displaced by jarring movements of the machine. The bearing boX 16 is provided in its top with a flanged groove 20 intersecting its outer end for the reception of the headed portion 21 of anadjusting screw 22 which terminates at its upper end in a crank handle 23 and works through a nut or threaded bearing 24 held between the posts 2 and pierced by the fastenings 7. By this arrangement, the shaft 15 may be quickly raised and lowered in a very simple and effective manner. I

Upon the forward end of the shaft 15 there is a wheel or roller 25 having a concaved periphery provided with an annular groove or channel 26, and upon the opposite end of this shaft there is a sprocket 27.

In front-of the frame there is an upstanding bracket member 28 having an arcuate slot 28 struck from the shaft 12 as a center, and loosely journaled upon this shaft is an arm 29 having its free end overlapping the bracket 28 and carrying a stub shaft 30 working in the arcuate guide slot and carrying a gear 31 which is in mesh with the gear 14.

Upon the shaft 30 at the inner side of the gear 31 there is a sprocket 32 around which trav els a belt or sprocket chain 33 which also engages the sprocket 27 upon the shaft- 15. Power is applied to the shaft 12 for driving the wheel or roller 13, and as the gear 14 is in mesh with the gear 31, the sprocket 32 will be driven and will also drive the shaft and the roller 25. When the shaft 15 is raised or lowered, the stub shaft will of course rise and fall therewith, while at the same time the gear 31 will remain in mesh with the gear 14 as it swings around the axis of the gear 14 as a center. By this arrangement, no manual adjustment of the gearing is necessary when the shaft 1 5 is raised and lowered, as the gearing is arranged to automatically accommodate itself to adjustments of the shaft 15.

Located between the wheels or rollers 13 and 25 is the core element of the present machine, said core including a body made up of spaced plates 34 disposed in parallel vertical planes and connected by a series of fastenings35. A tubular internally threaded seat or socket 36 is secured between and projects rearwardly from the rear end portions of the plates for the reception of the adjacent threaded end of a pipe supporting bar 37, there being a locking nut 38 carried by the bar and designed to be set up against the socket to prevent the bar from becoming loose by the jarring movements of the machine. Journaled between the plates upon certain of the fastenings thereof, are upper and lower rollers 39 and 40, each having convexed peripheries for respective engagement with the concaved peripheries of the rollers 13 and 25. Glamped between the plates 34 and projecting in front thereof is a shank member 41 which is pierced by adjacent fastenings and is provided at its forward eX- tremity with an enlarged head portion 42 which is provided at its outer face with a concentric socket 43. A threaded stem member 44 projects centrally from the socket and is integral with the head. The front or outer face of the head 42 is provided with a series of radial grooves or seats 45 intersecting the outer periphery of the head and also the socket. Each radial groove is provided in its opposite wall with alined recesses 46 intersecting the front face of the head and designed to receive the trunnions 47 of an anti-friction roller 48 of a diameter to project beyond the periphery of the head. For the purpose of holding the anti-friction rollers upon the head, there is a cap 49 having a central opening 50 to loosely receive the stem 44 and provided with a concentric socket 51 corresponding to the socket 43. The socketed face of the cap is provided with an annular series of radial grooves 52 to register with the grooves of the head and the walls of these grooves are provided with corresponding notches 53 to receive the trunnions 47 of the anti-friction rollers 48. A suitable nut 54 is fitted upon the stem 44 to hold the cap in place.

The core made up of the members 42 and 49 and the rollers 48 is centered within a skeleton frame 54, preferably in the nature of a ring which stands in an upright position and is supported by a pair of standards 56 rising from the bed 1 and provided with braces 57 inclining downwardly and forwardly from the to s of the standards to the base. Each side 0 the frame 54 is connected to the adjacent standard by a substantially U-shaped clip 58 which embraces these members, and there is a fastening 59, such as a bolt, removably piercing the clip, the frame and the standard. Upon the rear face of this frame there is an annular series of radially disposed. slotted brackets 60, which are preferably U-shaped so as to embrace a threaded fastening 61 which engages a threaded opening in the frame, there being a washer 62 interposed between the head of the fastening and the bracket, whereby the latter may be adjusted radially and clamped in a fixed position when set. The open end of the bracket is directed inwardly and carries an anti-friction roller 63 which has a conveXed periphery, the bracket being situated so as to be disposed with its roller 63 between adjacent rollers 48 of the corrugating core. The uppermost of the series of rollers 63 is provided with an annular peripheral groove 64 corresponding to the groove 26 in the roller 25.

Power is applied to the machine through the medium of a belt 65 which is shiftable in any suitable manner from one to the other of the fast and loose pulleys 66 and 67 provided upon that end of the shaft 12 which is opposite the roller 13.

In practice, a sheet metal pipe or tube which has not yet been corrugated, is thrust forward upon the bar 37 until it enters be tween the rollers 25 and 39, and also between the rollers 40 and 13, there being a centering head 68 fixed. upon the rod 37 so as to properly direct the pipe to the corrugating apparatus. The rollers 25 and 13 rotate in the direction of the arrows applied thereto, and thereby feed the pipe forwardly, the seam of the pipe being compressed between the rollers 39 and 25, the groove 26 of the roller 25 serving to receive the thickened portion of the pipe at the seam thereof. After leaving the seaming rollers, the pipe passes between the inner and outer corrugating members, whereby the rollers 48 press the pipe outwardly between the rollers 63, and the rollers 63 press the pipe inwardly between the rollers 48 thereby producing longitudinal corrugations upon the pipe which is fed to the corrugating mechanisms by the operation of the rollers 25 and 39. The uppermost corrugating roller 63 is provided with the groove 64 to receive the seam of the pipe and thereby guide the latter straight through the corrugating mechanism without any danger of the pipe becoming twisted or out of alinement.

It will here be explained that the corrugating mechanism is stationary and it is only the rollers 25 and 13 which are driven, wherefore said rollers constitute feed rollers to force the work through the corrugating mechanism.

Should it be desired to accommodate within the machine a pipe of larger diameter than that to which the machine is adjusted the brackets are adjusted radially for desired distances and a core having rollers 39 of the proper diameter is placed upon the bar 37. Shaft 15 is then adjusted vertically so that not only will the larger pipe fit snugly upon the rollers 39 and between the rollers carried by brackets 60 but will also be contacted upon its outer face by the roller 25. Smaller rollers 39 will of course be used where smaller pipes are operated upon and the adjustment of the brackets 60 and shaft 15 will be reversed accordingly. 1

A veryimportant feature of advantage resides in the fact that the journal box 17 is pivotally hung from the pin 19, whereby the shaft 15 is capable of a swinging adjustment toward and away. from the shaft 12 to vary the pressure upon the pipe by the downward adjustment of the box 16 under the influence of the crank handle 23. It will here be explained that the connection between the threaded adjusting member 22 and the ournal box 16 is not only a swiveled 011e, but is also slidable in the direction of the shaft in order that there may be no binding of the joint when the shaft is swung up and down. In this connection attention is called to Fig. 2 of the drawings. It will of course be understood that the swinging adjustment is slight and therefore does not interfere with the drive connection between the sprockets 27 and 32.

Having thus described the invention, what is claimed is:

1. In a pipe making machine, the combination of a frame, a pair of substantially parallel shafts mounted upon the frame, one of the shafts being mounted for swinging adjustments toward and away from the other shafts a core located between the shafts and provided with anti-friction rollers, and pressure rollers carried by the shafts in co-operative relation with the anti-friction rollers.

2. In a pipe making machine, the combinati on of a frame, substantially parallel shafts, one of the shafts having a pivotally supported journal and a laterally adjustable journal, means for shifting the laterally adjustable journal, a core situated between the shafts, and pressure rollers carried by the shafts and co-operating with the core.

3. In a pipe making machine, the combination of a frame, a power shaft, a countershaft in parallelism therewith and mounted for swinging adjustments toward and away from the power shaft, a gear upon-the power shaft, another gear in mesh with the first mentioned gear and mounted to swing in an are around the circumference of the first mentioned gear, a belt connection beween the swinging gear and the countershaft, a core situated between the shafts, and pressure rollers carried by the shafts and co-operating with the core.

4. In a pipe making machine, the combination of a frame, a drive shaft havinga gear, a countershaft in substantial parallelism with the drive shaft, pivotal and slidable bearings for the countershaft, means connected to the slidable bearing for adjusting the same to swing the countershaft toward and away from the drive shaft, a driven gear in mesh with the drive gear and mounted to swing around the circumference thereof, a belt connection between the driven gear and the pivotal end of the countershaft, a core situated between the two shafts, and pressure rollers carried by the shafts and co-operating with the core.

5. In a pipe making machine, the combination of an open frame, an annular series of radially adjustable corrugating rollers car-' ried thereby, a corrugating core centered within the series of rollers and including a head provided with a centrally threaded stem and an annular series of radial grooves, the opposite walls of each groove being provided with corresponding notches, antifriction rollers received within the grooves and provided with trunnions received in the notches, a cap embracing the stem and provi ded with radially notched grooves receiving the rollers and the trunnions thereof, and a nut fitting upon the stem and holding the cap in place.

6. In a machine of the character described the combination with a skeleton frame and radially adjustable rollers mounted within the frame; of a corrugating core surrounded by the rollers and having corrugating rollers journaled therein and projecting therebeyond and between the rollers carried by the skeleton frame, rollers connected to the core and adapted to be surrounded by a pipe, a feed roller co-operating with one of said rollers, a combined feed and pipe seam engaging roller adapted to bear upon a pipe and cooperate with one of said interior rollers, and a pipe seam receivng roller adjustably connected to the frame, said pipe seam receiving rollers constituting guides for a pipe.

7. In a machine of the character described the combination with pipe feeding and cor rugating mechanism; of a combined feed and pipe seam engaging roller, and a combined corrugating and pipe seam engaging roller, said rollers constituting guides for a pipe while being corrugated.

8. A machine of the character described comprising a skeleton frame, an annular series of radially adjustable brackets carried by the frame, a combined corrugating and pipe seam receiving roller journaled in one of the brackets, corrugating rollers journaled within" the "other bracketsf'a corrugating core In testimony that I claim the foregoing as comprising radially disposed rollers and supmy own, I have hereto affixed my signature ports therefor, means for feeding a pipe on to in the presence of tWo Witnesses.

the core and between the rollers and the WILLIAM F. NORMAN. brackets, and a combined feeding and pipe WVitnesses: seam receiving roller, both of said pipe seam H. L. KINGSLAND, receiving rollers constituting pipe guides. J. W. RUSSELL. 

